[INFO] fetching crate this_is_b 0.1.7...
[INFO] testing this_is_b-0.1.7 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate this_is_b 0.1.7 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate this_is_b 0.1.7
[INFO] finished tweaking crates.io crate this_is_b 0.1.7
[INFO] tweaked toml for crates.io crate this_is_b 0.1.7 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate this_is_b 0.1.7 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate this_is_b 0.1.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37ed803e3b02b285b3e25b034bd0ac4326caaee65b66f12253e8374cc9aa1cf5
[INFO] running `Command { std: "docker" "start" "-a" "37ed803e3b02b285b3e25b034bd0ac4326caaee65b66f12253e8374cc9aa1cf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37ed803e3b02b285b3e25b034bd0ac4326caaee65b66f12253e8374cc9aa1cf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37ed803e3b02b285b3e25b034bd0ac4326caaee65b66f12253e8374cc9aa1cf5", kill_on_drop: false }`
[INFO] [stdout] 37ed803e3b02b285b3e25b034bd0ac4326caaee65b66f12253e8374cc9aa1cf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] effa5832a3ab2083d3ce78acc64bd7bc01e5e89e20c3dafc1277d0b4b0ca3c44
[INFO] running `Command { std: "docker" "start" "-a" "effa5832a3ab2083d3ce78acc64bd7bc01e5e89e20c3dafc1277d0b4b0ca3c44", kill_on_drop: false }`
[INFO] [stderr]    Compiling this_is_b v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "effa5832a3ab2083d3ce78acc64bd7bc01e5e89e20c3dafc1277d0b4b0ca3c44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "effa5832a3ab2083d3ce78acc64bd7bc01e5e89e20c3dafc1277d0b4b0ca3c44", kill_on_drop: false }`
[INFO] [stdout] effa5832a3ab2083d3ce78acc64bd7bc01e5e89e20c3dafc1277d0b4b0ca3c44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93212fcc20722f4b415395eb98d87e9578fb6a0ec180867ffa57fbe394c7e095
[INFO] running `Command { std: "docker" "start" "-a" "93212fcc20722f4b415395eb98d87e9578fb6a0ec180867ffa57fbe394c7e095", kill_on_drop: false }`
[INFO] [stderr]    Compiling this_is_b v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "93212fcc20722f4b415395eb98d87e9578fb6a0ec180867ffa57fbe394c7e095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93212fcc20722f4b415395eb98d87e9578fb6a0ec180867ffa57fbe394c7e095", kill_on_drop: false }`
[INFO] [stdout] 93212fcc20722f4b415395eb98d87e9578fb6a0ec180867ffa57fbe394c7e095
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9988f24edc48717c8f40a23d602dfeedd6969d007749137c206ad4efa10bc6f0
[INFO] running `Command { std: "docker" "start" "-a" "9988f24edc48717c8f40a23d602dfeedd6969d007749137c206ad4efa10bc6f0", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/this_is_b-cb7f8b423a513d1e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests this_is_b
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9988f24edc48717c8f40a23d602dfeedd6969d007749137c206ad4efa10bc6f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9988f24edc48717c8f40a23d602dfeedd6969d007749137c206ad4efa10bc6f0", kill_on_drop: false }`
[INFO] [stdout] 9988f24edc48717c8f40a23d602dfeedd6969d007749137c206ad4efa10bc6f0